Items Affecting Comparability of Net Income and Cash Flows (Details 2) $ in Millions	3 Months Ended			9 Months Ended			24 Months Ended
	Sep. 30, 2017 USD ($) restaurants		Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($)		Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Gain (Loss) on Disposition of Assets	$ (201.0)		$ (21.0)	$ (331.0)		$ (75.0)
KFC Global Division [Member]
Gain (Loss) on Disposition of Assets	(50.0)	[1]	2.0	(8.0)	[1]	3.0
Unallocated [Member]
Gain (Loss) on Disposition of Assets	(201.0)		(21.0)	(331.0)		(75.0)
Pizza Hut Global Division [Member]
Gain (Loss) on Disposition of Assets	27.0	[2]	(9.0)	40.0	[2]	(63.0)
General and Administrative Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost	1.0			18.0
General and Administrative Expense [Member] | Unallocated [Member]
Costs Associated with strategic initiatives	4.0		30.0	15.0		34.0
Franchise and license expenses [Member] | Unallocated and General and administrative expenses [Domain]
Costs associated with KFC U.S. Acceleration Agreement	4.0		1.0	12.0		17.0	$ 98.0
Costs associated with PH U.S. Acceleration Agreement	8.0			20.0
Franchise and license expenses [Member] | 2015 to 2018 [Domain] | Unallocated and General and administrative expenses [Domain]
Costs associated with KFC U.S. Acceleration Agreement				120.0
Franchise and license expenses [Member] | 2017 [Domain] | Unallocated and General and administrative expenses [Domain]
Costs associated with KFC U.S. Acceleration Agreement				15.0
Franchise and license expenses [Member] | 2017 to 2018 [Domain] | Unallocated and General and administrative expenses [Domain]
Costs associated with PH U.S. Acceleration Agreement				90.0
Incremental Advertising [Domain] | KFC Global Division [Member]
Costs associated with KFC U.S. Acceleration Agreement	5.0		$ 5.0	14.0			$ 30.0
Advertising [Domain] | 2015 to 2018 [Domain] | KFC Global Division [Member]
Costs associated with KFC U.S. Acceleration Agreement				60.0
Advertising [Domain] | 2017 [Domain] | KFC Global Division [Member]
Costs associated with KFC U.S. Acceleration Agreement				20.0
Advertising [Domain] | 2018 [Member] | KFC Global Division [Member]
Costs associated with KFC U.S. Acceleration Agreement				10.0
Incremental Advertising [Domain] | Franchise and license expenses [Member] | Pizza Hut Global Division [Member]
Costs associated with PH U.S. Acceleration Agreement	$ 10.0
Advertising [Domain] | 2017 [Domain] | Pizza Hut Global Division [Member]
Costs associated with PH U.S. Acceleration Agreement				25.0
Advertising [Domain] | 2018 [Member] | Pizza Hut Global Division [Member]
Costs associated with PH U.S. Acceleration Agreement				12.5
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | KFC Global Division [Member]
Number of Restaurants Held For Sale | restaurants	520
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Unallocated [Member]
Depreciation	$ 5.0					5.0
Property, Plant and Equipment [Member]
Costs associated with PH U.S. Acceleration Agreement				$ 4.0
KOREA, REPUBLIC OF | Pizza Hut Global Division [Member]
Gain (Loss) on Disposition of Assets	25.0					25.0
TURKEY | KFC Global Division [Member]
Gain (Loss) on Disposition of Assets	51.0					51.0
Other Comprehensive Income (Loss) [Member] | KOREA, REPUBLIC OF | Pizza Hut Global Division [Member]
Gain (Loss) on Disposition of Assets	$ 12.0					$ 12.0

[1] During the quarter ended September 30, 2017, KFC refranchising gains related primarily to the sale of restaurants in the Netherlands and Australia. These gains were partially offset by a loss recorded related to our planned refranchising of KFC Turkey, which was classified as held-for-sale during the quarter ended September 30, 2017. While the sales price we expect to receive for KFC Turkey exceeds the carrying value of the restaurants being sold, this pending transaction would represent a substantially complete liquidation of our KFC Turkey foreign entity. Accordingly, we are required to include accumulated translation losses associated with our KFC Turkey business within our held-for-sale impairment evaluations. As such, we recorded a $51 million non-cash charge within Refranchising (gain) loss that represents the excess of the book value of our KFC Turkey business, which included the accumulated translation losses and a proportionate amount of the KFC Turkey goodwill balance, over the expected sales price.

[2] During the quarter ended September 30, 2017, we recorded a $25 million Refranchising loss related to executing a master franchising agreement that consolidated our existing Pizza Hut Korea franchise base under a single master franchisee. This loss included writing off $12 million of accumulated translation losses as this transaction resulted in a substantially complete liquidation of our Pizza Hut Korea foreign entity.